Koa::Response

Response组件是对swoole_http_response的简单封装：

  1. <?php
  3. class Response
  4. {
  5.     /* @var Application */
  6.     public $app;
  7.     /** @var \swoole_http_request */
  8.     public $req;
  9.     /** @var \swoole_http_response */
  10.     public $res;
  11.     /** @var Context */
  12.     public $ctx;
  13.     /** @var Request */
  14.     public $request;
  15.     public $isEnd = false;
  17.     public function __construct(Application $app, Context $ctx,
  18.                                 \swoole_http_request $req, \swoole_http_response $res)
  19.     {
  20.         $this->app = $app;
  21.         $this->ctx = $ctx;
  22.         $this->req = $req;
  23.         $this->res = $res;
  24.     }
  26.     public function __call($name, $arguments)
  27.     {
  28.         /** @var $fn callable */
  29.         $fn = [$this->res, $name];
  30.         return $fn(...$arguments);
  31.     }
  33.     public function __get($name)
  34.     {
  35.         return $this->res->$name;
  36.     }
  38.     public function __set($name, $value)
  39.     {
  40.         switch ($name) {
  41.             case "type":
  42.                 return $this->res->header("Content-Type", $value);
  43.             case "lastModified":
  44.                 return $this->res->header("Last-Modified", $value);
  45.             case "etag":
  46.                 return $this->res->header("ETag", $value);
  47.             case "length":
  48.                 return $this->res->header("Content-Length", $value);
  49.             default:
  50.                 return $this->res->header($name, $value);
  51.         }
  52.     }
  54.     public function end($html = "")
  55.     {
  56.         if ($this->isEnd) {
  57.             return false;
  58.         }
  59.         $this->isEnd = true;
  60.         return $this->res->end($html);
  61.     }
  63.     public function redirect($url, $status = 302)
  64.     {
  65.         $this->res->header("Location", $url);
  66.         $this->res->header("Content-Type", "text/plain; charset=utf-8");
  67.         $this->ctx->status = $status;
  68.         $this->ctx->body = "Redirecting to $url.";
  69.     }
  71.     public function render($file)
  72.     {
  73.         $this->ctx->body = (yield Template::render($file, $this->ctx->state));
  74.     }
  75. }